CUDA-Accelerated Soft Body Simulation

University of Pennsylvania, CIS 565: GPU Programming and Architecture, Final Project

• Gehan Zheng (LinkedIn, personal website), Hanting Xu

Click here for documentation (CIS5650 Final Project version)

Requirements

• CUDA >= 12.0 (cublas, cusolver)
• CMake >= 3.18

Description

This project is originally a final project for CIS5650 at UPenn and is still under development. The goal of this toy project is to provide a CUDA-accelerated physical simulation framework with dependencies as few as possible, in which various simulation algorithms can be implemented and tested.

Features

• Linear solvers

  • sparse cholesky prefactorization w/ approximate minimum degree ordering
  • dense cholesky prefactorization
  • jacobi solver (naive)
  • cholesky decomposition
  • preconditioned conjugate gradient

• FEM

  • projective dynamics
    • Direct (cusolver's cholesky)
    • Chebyshev acceleration
  • explicit euler
  • incremental potential
    • materials
      • corotational
      • neo-hookean
    • barrier
      • spheres, planes, cylinders
      • soft bodies

• Collision detection

  • real-time bvh
  • ccd
  • robust collision handling

Dependencies

• CUDA
• CMake

Below are included in the project:

• OpenGL
• ImGui
• spdlog
• Eigen
• glfw
• catch2

Screenshots

showcase.mp4